Pennsylvania Geological Survey - Historical Photographs

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  • Location Covered = Mifflin
  • Contributing Institution = Pennsylvania Geological Survey

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Alexander Caverns
Caves
Alexander Caverns, showing nests of calcite concretions.
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Anticlinal
Structure-Folds
Anticlinal, Lewistown, just east of station., Small anticline, Lewistown just east of station. July 1921
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Anticline
Structure-Folds
Anticline between poles 153-5 and 153-6 south of Mifflin.
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Approaching ridge of Medina
Topography
Approaching ridge of Medina, Lewistown Narrows.
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Bald Eagle Formation
Stratigraphy
Bald Eagle Formation, Reedsville, Pa.
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Bedding faces
Stratigraphy
Bedding faces, Medina sandstone. Lewistown Narrows.
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Between poles 153-7 and 153-8 below Mifflin
Structure-Folds
Between poles 153-7 and 153-8 below Mifflin.
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Between poles 153-7 and 153-8 near Mifflin
Structure-Folds
Between poles 153-7 and 153-8 near Mifflin.
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Broad anticline
Structure-Folds
Broad anticline, pole 153-16 near Mifflin.
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Broad syncline in Salina rocks
Structure-Folds
Broad syncline in Salina rocks, pole 153-16 just below Mifflin.
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Broad syncline in Salina rocks
Structure-Folds
Broad syncline in Salina rocks, pole 153-15 below Mifflin.
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Cave on Peachy Farm
Caves
Cave on Peachy Farm, Allensville., p. 102
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Center of anticline
Structure-Folds
Center of anticline, east of Lewistown., Center of anticline, east of Lewistown July 1921.
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Christ Lutheran Church
Cities, Towns, and Buildings
Christ Lutheran Church (1901), Lewistown. Hummelstown sandstone.
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Close up of kilns
Nonmetallic Mineral Resources
Close up of kilns, Haws Refractories Company. Hawstone, Lewistown Narrows.
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Close up of Oswego sandstone
Stratigraphy
Close up of Oswego sandstone, Manns Narrows.
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Contact between Tuscarora on right of center and Juniata left of center
Stratigraphy, Sedimentation
Contact between Tuscarora on right of center and Juniata left of center, Mans Narrows.
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Contact of Don and Do
Stratigraphy
Contact of Don and Do, a disconformity, at hammer. Basal Don here is black shale. A few inches of same at bottom contains reworked sand grains from underlying Do. On Pennsylvania Railroad (PRR) east of Newton Hamilton.
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Contact of Don and Do, a disconformity at hammer
Stratigraphy
Contact of Don and Do, a disconformity at hammer. On Pennsylvania Railroad east of Newton Hamilton
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Detail of kiln opening
Nonmetallic Mineral Resources
Detail of kiln opening, Haws Refractories Company. Hawstone, Lewistown Narrows.
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